铜包

Many of these were brass and Sheffield plate—silver over copper—and part of the girls' duties included keeping their collars brightly polished.

这类项圈有些是黄铜，或者银铜合铸——银包铜，女孩的行为守则包括了保证项圈被打磨光亮一项。

Copper-bottomed pots; a copper-bottomed ship.

底部包铜的壶；底部包铜的船。

At present, annual production of enamelled copper round wire and bare copper wire capacity of 8000 tons, the product including QZ, QA, QZY models such as enamelled copper round wire, T, TY models of soft-state and Hard bare copper wire, diameter ranging from production 0.035 ~ 3.00 mm; at the same time as the electrical wire industry design and manufacture of various types of wire drawing machine, enamelled units and other special machinery and equipment.

目前公司年生产漆包铜圆线和裸铜线能力达到8000吨，产品包括QZ、QA、QZY等型号漆包铜圆线，T、TY型号的软态和硬态裸铜线，生产线径范围从Φ0.035~3.00㎜；同时为电工线材行业设计制造各类型拉丝机、漆包机组等专用机械设备。

In this paper, with 2-oxo-propionic acid salicyloyl hydrazone as a ligand, one calcium complex, three copper complexes and thirteen rare earth(RE=La, Ce, Pr, Nd, Sm, Eu. Gd, Tb, Dy, Er, Tin, Yb and Lu) complexes have been synthesized. The crystals of four complexes were obtained, and the crystal structures were determined by single crystal X ray diffraction. One of the crystals is calcium complex, the other are binary and trinary complexes of copper.

本文选用2-羰基丙酸水杨酰腙作为配体，在水中分别与钙、铜、稀土(RE=La、Ce、Pr、Nd、Sm、Eu、Gd、Tb、Dy、Er、Tm、Yb和Lu)的盐反应，共制得了17种未见文献报道的配合物，另外还培养了2-羰基丙酸水杨酰腙、咪唑与铜、钙的二元及三元配合物的四种单晶，对La-Gd的稀土的配合物进行了溶解热的测定，并用Gauss-98软件包对铜的配合物进行了有关量化计算。

Result shows that the oxidation resistance can only be improved a little by this modification, and some copper was oxidized into cuprous oxide At last, fine copper powder was treated by potassium rhodanate solution andβ-CuSCN coating layer was produced.

实验尝试了用氧化铁包覆铜粉以对其改性的方法，结果表明改性后铜粉的抗氧化性能有一定的提高，但在处理过程中部分铜粉被氧化生成了氧化亚铜。

The corrosion behavior of the microwires in aqueous HF solution and melting NaOH were investigated respectively,and the anti-corrosion property of glass-coated pure copper microwires in strongly acid and strongly alkali were analyzed with the corrosion mechanism being discussed.

采用熔融纺丝法制备了玻璃包覆纯铜微丝，对微丝表面玻璃包覆层的去除进行了实验研究，评价了微丝在氢氟酸和熔融氢氧化钠中的腐蚀行为，分析了玻璃包覆纯铜微丝在强酸和强碱中的耐腐蚀性能，探讨了其腐蚀机理。

It is found that the ploating structure of copper power is related to mechanism of nucleus forming and content of silver;Thermal stability is affected by plating structure of silver-coated copper power.Silver-coated coppe...

结果表明：铜粉表面镀层结构与银离子形核长大机制和银含量有关；镀银铜粉的热稳定与表面镀层结构有关；完全包覆结构的镀银铜粉具有较好的热稳定性，抗氧化温度可以达到800℃以上。

The study status on the preparation process of various methods to prepare silver-coated copper powder and the powder's properties were overviewed.

综述了制备银包铜粉各种方法的制备工艺及银包铜粉性能的研究现状，这些方法包括置换法、化学还原法、置换与化学沉积复合法及熔融雾化法。

The micro silver-coated copper powder with high temperature of oxidation resistance was prepared by chemistry substitutional and chemistry plating reaction.The surface topography,microstructure and oxidation resistance of the coated powder were characterized by SEM,XRD,TG and other methods.

为了提高铜粉的热稳定性，采用滴入化学镀法在铜粉末表面包覆一层金属银，用SEM、X射线衍射、粒度分布和热重分析表征了不同包覆厚度的镀银铜粉和原始铜粉的表面形貌、表面结构及抗氧化性。

B-62530 silver coated copper conductive coating is made of silver coated copper powder which is of excellent conductivity.

B-62530 银包铜导电涂料是深圳市鑫盛丰化工科技有限公司的生产由优秀的银包铜导电粒子制成的导电漆。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了